Cisco Systems, Inc. (using the trademark Cisco) is an American multinational technology conglomerate corporation that develops, manufactures, and sells hardware, software, telecommunications equipment
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac9574df46431875fc81f2501d73beaa1dd334fb38eb3474d67320d5f5a52764. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/538c0edc-bece-4b10-9f9d-59f1fb82607b.json and https://artists.proofprofile.net/proofs/artist/538c0edc-bece-4b10-9f9d-59f1fb82607b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73c88d6318ab8d7c57c812281f16613c1fc4cc0dd1a51a4fd3af2fa51e16494b. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T13:50:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITC530600079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x949826b2bdddb21733741f8cc25f6d3b844f1049aef728930ed79b9e3b86b9f2. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITC530600080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8be91e39144d23af5bcb185c2ad6cd4b246755960fbcd1f94b40bddad70b79b. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITA981205364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe018a9d41df404900b724b34b2232d80a89f43f477b75415605845219edf0483. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITA981205372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20a97809ec8bfe1f6a2d2492f3ec1c68ef402769f0b4d8be34b3c858c4224364. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITA981205373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b45c7a0cd1e1dabb9e0487e18bc7e96a42e8e906732665b2098ab086f2cc288. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V81696350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d9338fc627b0742c4955ad21f80a26324cf47e693a82175806d94d05e4af5e4. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V81696353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79b1566c904834797bf3c946ba44e56511a5557d7efe4529bcaaf4abedc7a3b0. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V81696355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdeb37429da8cdb57b9c2658233f6c5133682122a8348c07d4a9c158a165dcfd. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/IT0C11500008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8331019a8b9b8faf143566c7bafce7fa4b346b8e174dbdfd0399630be7a8202b. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITIP61600001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40a2796945022583a7b1e5dc27c59f98603bec9097ede253ab5b934717942ee0. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITIP61600002.
40 anni in concerto (Storie di ramblers, d'innocenza, d'esperienza [Live])
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3447e86561b24cbb10a8e335515cef31aa7dce1818c015b111af238b93ecb5d5. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR96X1969464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92b40fa01e072d57e88fa51766398da933fbb37d6145aefd76f9dad5ce733397. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR2X42143128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x204b605d990475542552a717375c0871cbf48dd6b1e61ac9cd93b77192783368. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T09:55:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITIP62100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x822f1a7acb90dca4e8c4dfb312e01ef3eba0ae6e1c3e5842a5bcbf5f4331cff8. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITIP62100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a11b4bd6517c4b42f351d938a235515d1b3f281664de5d9ec0a046b8d502047. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA052060322.
Riportando tutto a casa (Live Trent'anni Dopo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabccefb4a9d970f132a8e4aaa0e2f67dc46e3afc2082619cf46b73a4ad8d6e81. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0H2441449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4030eb842fc3133dade62b6c03ac89c741ed79a79079fc4484cedbc87bf56d61. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0H2441436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xced2a8f6fb86390e00b9153691eca0198fcfc75f75bfcd077de8c95eb102ee6d. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-17T00:16:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0H2441437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b2a8d9c2e80a3f5b27accfc515d89603df63e1f13169918d8c10a7d27c8547a. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0H2441438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91a4999903a6412552cbc4109a890e3b5fe7dc1be958a38b8c0167463c30963e. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0H2441451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d727929dd4463996e481054c4570dd5e9a91df05441c5b0b7af5caad27ad9ba. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0H2441439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86cae7bd632babd82f7daf50668ce9ba4d461303a1a9b7a2dfe6845704cd1aac. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0H2441452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cd8b066b06e01e2d6b81a7f541235c6e3f413a30993d08812708f2c32401950. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0H2441453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b7f55effa421406164aa0317bfdbf4f7bacfabaf5f98581087b308a89233347. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0H2441440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x012553fbf738d88be977d4b7ab5f3dc7538c76d78f8d8d59d89a92223c6d1ddf. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0H2441441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc063333f8e78592e901e8e8c4dfd90ae2c620224f80dfa3d5f332b28622d42e5. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0H2441454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f0ef6c3ea218adfc6b673ee82c2fc4604ccede2a5ec62d8f73e8deb0b744283. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0H2441455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7df76cf25b4fa92c942f774de42081e0852108f02798972f7f2e933a7145744e. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0H2441442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7abe4191814a5ddb0319e052f28a2a8a7309848f4606fa4deb189c9634f75dd8. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:36:54Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0H2441443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee15006376e003a34bfcf30952b5a56950a6966c10ec6c0429199611b5fb1bbc. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0H2441444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf880735056ae0221039bc25881087aedb49db9fe819295a8b0837bd9dbc38cb8. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0H2441457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d1c20f047fa0ce78adbccaf176ac4c7c3ba8abbf99b40799021020d4b1557ce. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0H2441445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x723ae458abcbfbae68c17ca4617c7aab4bb0be143c453bf343a39d83df0cdb80. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0H2441446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7bbe3d8354243669cefb6f2c0cd1098b545344e2e33223e5aeae10f04bd134c. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0H2441447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5af4da3daef6e7fc6cf56337ee9311de9b463ebec4b48254a43fed3158ee7449. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0H2441448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8c07f8ede249f4a6d2400407ddf466dc1aa614123ce2ee52713974356a75782. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR96X2545314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20ee0b5cf8462f91cc45451186b60b3bc72c47527dab22a5e4f6ea8909d0444a. Chain 2 (Bitcoin): anchored in block 958376 (2026-07-17T06:41:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR96X2561555.
La Terra dei miei Figli (feat. Cisco & Fry)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa367d66bf432788fe37853a97fed8ae144df6b311d4bc042860b7dc4597ec785. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITK872000180.